• Tonight

    Mar 4

    Lo 2°

    Mainly clear and frigid

    Lawn Mowing Weather
    • Hours of Precip
      0
    • Precip
      8%
    • Hi
      RealFeel
  • Thu

    Mar 5

    13°Lo 1°

    Sunny, but frigid

    Poor for lawn mowing
    • Hours of Precip
      0
    • Precip
      5%
    • Hi
      RealFeel
    more
  • Fri

    Mar 6

    28°Lo 24°

    Sunny and breezy

    Poor for lawn mowing
    • Hours of Precip
      0
    • Precip
      8%
    • Hi
      RealFeel
      13°
    more
  • Sat

    Mar 7

    40°Lo 23°

    Chilly with clouds and sun

    Poor for lawn mowing
    • Hours of Precip
      0
    • Precip
      4%
    • Hi
      RealFeel
      34°
    more
  • Sun

    Mar 8

    41°Lo 25°

    Chilly with clouds and sun

    Poor for lawn mowing
    • Hours of Precip
      0
    • Precip
      9%
    • Hi
      RealFeel
      36°
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Wed
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  1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm
Forecast
Partly Sunny
Partly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Partly Cloudy
Clear
Clear
Temp (°F) 19° 20° 19° 18° 17° 15° 14° 13°
RealFeel® -1° -3°
Humidity 67% 65% 66% 67% 68% 72% 72% 74%
   
  1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm
Rain
 
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Snow
 
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Ice
 
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  1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm
Wind (mph) 14 NW 14 NW 14 NW 14 NW 13 WNW 12 WNW 12 WNW 13 WNW
UV Index 3 3 2 1 0 0 0 0
Cloud Cover 45% 43% 19% 25% 27% 39% 7% 7%
Dew Point 10°
Middle Grid line 25 F Middle Grid line 20 F Middle Grid line 15 F Middle Grid line 10 F

Temperature History - Mar 4

more Historical Weather Data >
  Today Normal Record 3/4/2014
High 20° 43° 72° (1983) 29°
Low 25° -2° (2002) 14°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:26 AM with 11:23 of sunlight, then sets at 5:49 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 5:08 PM with 13:01 of moolight, then sets at 6:09 AM

Ottawa Weather Report

Chicago: Bitter Cold to Depart by the Weekend

March 4, 2015; 2:53 PM ET

While frigid conditions will encompass the Chicago area over the next couple of days, the weekend will offer a break from the bitter cold. more >

Why Do Leaves Change Color?

Sep 20, 2011; 5:00 AM ET Why do leaves change from green to beautiful shades of red, orange and yellow in the fall?

Current Drought Status

Current Soil Conditions

Wed. Overnight Freeze

Wed. Degree Days

Wed. Evapotranspiration